86261782 has 8 divisors (see below), whose sum is σ = 129591000. Its totient is φ = 43064784.

The previous prime is 86261761. The next prime is 86261789. The reversal of 86261782 is 28716268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86261789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31407 + ... + 34042.

It is an arithmetic number, because the mean of its divisors is an integer number (16198875).

Almost surely, 2^86261782 is an apocalyptic number.

86261782 is a deficient number, since it is larger than the sum of its proper divisors (43329218).

86261782 is a wasteful number, since it uses less digits than its factorization.

86261782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66110.

The product of its digits is 64512, while the sum is 40.

The square root of 86261782 is about 9287.7221103993. The cubic root of 86261782 is about 441.8479135234.

The spelling of 86261782 in words is "eighty-six million, two hundred sixty-one thousand, seven hundred eighty-two".